18676815985

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{71257}}^1$

素因数の和:71401

約数の個数: 32

約数和(自身を含む): 24626764800

約数和(自身を除く): 5949948815

約数列:

[1, 5, 19, 31, 89, 95, 155, 445, 589, 1691, 2759, 2945, 8455, 13795, 52421, 71257, 262105, 356285, 1353883, 2208967, 6341873, 6769415, 11044835, 31709365, 41970373, 120495587, 196598063, 209851865, 602477935, 982990315, 3735363197, 18676815985]

約数ペア:

[(1, 18676815985), (5, 3735363197), (19, 982990315), (31, 602477935), (89, 209851865), (95, 196598063), (155, 120495587), (445, 41970373), (589, 31709365), (1691, 11044835), (2759, 6769415), (2945, 6341873), (8455, 2208967), (13795, 1353883), (52421, 356285), (71257, 262105)]